fix(exts/devin-lang): remove CustomVariable class and refactor VariableProvider to use findLanguage method for language injection #101

The CustomVariable class was deleted as it was deemed unnecessary and introduced unnecessary complexity. The VariableProvider class was modified to use the findLanguage method from the util.parser.Code utility class to determine the language for code injection, eliminating the need for the CustomVariable class. This refactoring simplifies the language injection logic and improves the maintainability of the codebase.

Author: phodal

exts/devin-lang/src/main/kotlin/cc/unitmesh/language/DevInLanguageInjector.kt

@@ -1,5 +1,6 @@
 package cc.unitmesh.language
 
+import cc.unitmesh.devti.util.parser.Code.Companion.findLanguage
 import cc.unitmesh.language.parser.CodeBlockElement
 import cc.unitmesh.language.psi.DevInTypes
 import com.intellij.lang.Language
@@ -8,7 +9,6 @@ import com.intellij.psi.InjectedLanguagePlaces
 import com.intellij.psi.LanguageInjector
 import com.intellij.psi.PsiLanguageInjectionHost
 import com.intellij.psi.util.elementType
-import org.intellij.plugins.markdown.injection.aliases.CodeFenceLanguageGuesser
 
 class DevInLanguageInjector : LanguageInjector {
     override fun getLanguagesToInject(host: PsiLanguageInjectionHost, registrar: InjectedLanguagePlaces) {
@@ -23,7 +23,7 @@ class DevInLanguageInjector : LanguageInjector {
 
         val languageIdentifier = host.getLanguageId()
         val text = languageIdentifier?.text ?: return
-        val language = CodeFenceLanguageGuesser.guessLanguageForInjection(text) ?: return
+        val language = findLanguage(text) ?: return
 
         val contentList = CodeBlockElement.obtainFenceContent(host) ?: return
         if (contentList.isEmpty()) {

exts/devin-lang/src/main/kotlin/cc/unitmesh/language/completion/CustomVariable.kt

@@ -1,5 +1,6 @@
 package cc.unitmesh.language.completion
 
+import cc.unitmesh.devti.custom.compile.CustomVariable
 import com.intellij.codeInsight.completion.CompletionParameters
 import com.intellij.codeInsight.completion.CompletionProvider
 import com.intellij.codeInsight.completion.CompletionResultSet